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Finding the Fourth Proportional to 79,434.25, 109,620.02 and 43,625

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Solution

The fourth proportional to 79,434.25, 109,620.02 and 43,625 is: 60,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,434.25 : 109,620.02 = 43,625 : x
  2. Step 2: Convert to fraction form
    79,434.25/109,620.02 = 43,625/x
  3. Step 3: Cross multiply
    79,434.25x = 109,620.02 × 43,625
  4. Step 4: Simplify right side
    79,434.25x = 4,782,173,372.50
  5. Step 5: Solve for x
    x = 4,782,173,372.50/79,434.25
  6. Step 6: Final answer
    x = 60,202.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.